Daniela Roessler and her colleagues trained cameras on baby jumping spiders at night to find out.

丹妮拉·罗斯勒和她的同事在夜间用相机对准小跳蛛幼蛛拍摄，以找出答案。

But creatures like the jumping spider haven't gotten as much attention, so it wasn't known whether they got the same kind of sleep, said Roessler, an evolutionary biologist at the University of Konstanz in Germany.

但德国康斯坦茨大学的进化生物学家罗斯勒说，像跳蛛这样的生物并没有受到那么多关注，所以不知道它们是否有同样的睡眠。